Blood filter



FIG. 1 is a front view of a first embodiment of a blood filter showing our new design;

FIG. 2 is a right side view of the blood filter of FIG. 1, the left side view being a mirror image;

FIG. 3 is a top view of the blood filter of FIG. 1, the bottom view being a mirror image;

FIG. 4 is a rear view of the blood filter of FIG. 1;

FIG. 5 is a front view of a second embodiment of a blood filter showing our new design;

FIG. 6 is a right side view of the blood filter of FIG. 5, the left side view being a mirror image;

FIG. 7 is a top view of the blood filter of FIG. 5, the bottom view being a mirror image;

FIG. 8 is a rear view of the blood filter of FIG. 5;

FIG. 9 is a front view of a third embodiment of a blood filter showing our new design;

FIG. 10 is a left side view of the blood filter of FIG. 9, the right side view being a mirror image;

FIG. 11 is a top view of the blood filter of FIG. 9; the bottom view being a mirror image;

FIG. 12 is a rear view of the blood filter of FIG. 9;

FIG. 13 is a front view of a fourth embodiment of a blood filter showing our new design;

FIG. 14 is a left side view of the blood filter of FIG. 13, the right side view being a mirror image;

FIG. 15 is a top view of the blood filter of FIG. 13; the bottom view being a mirror image; and,

FIG. 16 is a rear view of the blood filter of FIG. 13.

In the drawings, the broken lines are for the purpose of illustrating environment only and form no part of the claimed design. 

CLAIM The ornamental design for the blood filter, as shown and described. 